Hose or pipe clamp



Nov. 25, 1930. A. FAY ET AL HOSE 0R PIPE (21.9.24?

Filed Oct. 24, 1927 2 Shee'ts-Sheet 1 4% VINV NTOR.

a /x @ZMW ATTORNEY.

7 Nov. 25, 1930.

A. FAY ETAL HOSE OR PIPE cum Filed Oct. 24, 1927 2 Sheets-Sheet 2 Patented Nov. 25.1930

' i (UN T ES A ALrH s FAQYA AND Joiin n. ZEHNDEROF LooIsviLLE, xEn'r eKY' Hosn on PIPE CLA P {Application filed October 24, 1927. SerialNo. 228,418. l, i

Our invention relates to hose clampsand. the like; andvits object is to provide a more; substantial and eflective device of this character, Which may be manufactured at a cost approximating that of the ordinary clamps; Other objects Will appear in thefeonrse of the following description.

Weattain these ob eets trated for example, in: drawings, in which Fignre 1 isa slde elevation of acla np em;-

bodying our invention, applied toa hoser and pipe connection,

' cross section; a q a w Fig. 2 is an end elevation of the same, With the hose and pipe'in sideelevation; i

Fig. 3 is aplan viewofthe same; g

the hose and pipe being; in

detail rs fi v lew of the toii wvedge part; p 1 g Fig. 5 is asimilar viewjof the bottomwedge part; V Fig. 6 is a view similar to Fig l showing the claI'np applied toa pipe and patch therefor; Fig. 7 is an end elevation of the same; Fig. 8 is a View similarto Fig. 1, showing a modification ofthe loop member; and

Fig. 9 is an end elevation of the same. In the example of Figs. 1to 7, inclusive;

the clamp comprises a loop member Elfinade of a strip of sheet metal having oblong slots 2 Q registered channels Land llfwithjtheholtq i nearfits ends. Thisstri-p is bent around the hoseA and pipe B (Fi s 1, 29nd 3) or the pipe B and patch C, (Figs. 6 and 7) "with its slotted ends incliningtoward each other at one side of the hose or pipe; ThGQ bOiJtOHL wedgepart 3 consistsof an elongated middle part having a channel 4 of" semi-circular; cross-section throughout its length,*vv ith end extensions 5 doWnWardly,,vvhich extensions and the bottom ofthe middle part are curved to fit the hose or pipe like asaddle. The middle part also has lateral extensions 6 similarly curved on their lowersides. Thetop of this part 3, thro ughout middle part and latby t e device illus rflle s sm yix c p p p 1 ese extensions 5, .npnear t 181i 0 h era lj extensionsiti; is incline inesmg e ens; lengthvv 'se of itself, or crosswlse o'f the-plpe onhose. Thepurposeo f the lateralextenf sioiis 6 is to give the part .3 ample bearing,

against the pipe or hoseQhelovV; and forflthe upper Wedgepart, above; as Well as to make a this lower wedge part g amply strong; while thenarrovverend extensions 5 will slip easily, 1 through the slots 2 of the loopjmember channel 4, are provided with recesses Fto, afford fiat surfacesat right angles to'the axis", of the channel. :The npper vvedge part 8 consistsof a middle part9 of semicirclilar cross sectiomQhavinglateral fextensions 10; the j underside of this mbers being fl'atan d 111' clined, ith'f aie1mnne1511 j of; semicircular cross-section tlii onghoutiitsfllength;to aegis: l v

ter'with the johahnelkiofthelovver member 3,

portionsfofthelower member 3and are 00- extensive therewith. The ends "of thisupper memberS are flat, wri ht angles to theaxis throughthecirc ular passage made by the head against-the'flat surfaces at oneend and 1 v otlierend ofthe inembersfiiand 8.

. H sof applying the. damp, the 'lovver or dle member displaced astraddleof thehosc l U or pipejjas shown, with the uppe'rfmemher Q s thereon andl'the bolt 12 or"12f,vvith its nut l3 screwedout thereonfthrough the reg istering channels 14: and 11';t he nnt being out far enough-to allovv' the; meniher Sgto I slide down onithememher 3 far; enong h to P mi the. l e mem 5 passe arend. the pipe ashefore nentioned, t'oreceive the,

narrow end portions of the members 3 and 8 through its slots 2. When the members 3 and 8 and member 1 have thus been brought together, the upper member 8 is slid up on the lower member 3 until the upper edges of the loop member slots 2 engage in the depressions 1 1, whereupon the nut 13 is screwed back on the bolt 12' or 12, further drawing the member 8 up along the member 3 until the entire device is very tightly clamped around the hose or pipe as shown.

In the example of Figs. 8 and 9, the wedge members 3 and 8 and their bolt 12 and nut 13 are the same as in Figs. 6 and 7 the difference being in the loop member 1 which, instead of being of sheet metal is of heavy wire bent into a link with welded ends, which link then is bent around the hose or pipe, as the hose A and pipe B, with the curved ends 2 of this link engaging in the depressions 14: of the upper Wedge member 8. This kind of loop member is better adapted for making connection between two pieces of hose A than is the wide flat strip member 1 of the other example; because the wire side parts of the loop member 1 sink into the respective hose end parts with more concentrated clamping pressure. However, the strip member 1 of the preceding example is more easily made, since a strip of metal of the required width may be fed from a reel by suitable automatic feeding mechanism, to a press which punches the slots 2 and cuts ofii the completed members, which then only require bending to fit around the hose or pipe. The wedge members 3 and 8 are economically made as castings, ready for use without any machining whatever. The

flat strip member 1 is better for holding a patch C as in Figs. 6 and 7 ,because the strip covers the thin edges 0 of thepatch, whereas the wires of loop member 1 would allow these ends to gap away from the pipe and thus not effectively close the leak, as at the crack 0 in the pipe B. It will be noted that, in either example, the downturned end parts 5 of the saddle member 3 extend around the hose or pipe far enough to lap over the line at which theloop member 1 or 1 begins to diverge from the hose or pipe at each side in extending up around the wedge members- WVe thus eliminate a place of leakage inevitably left, even with the best hose clamps heretofore in use, which have tongues to cover the regions between the ends of the loop member,,but which cannot entirely cover these regions with such effectiveness as to entirely prevent leakage.

The drawings show a rather large clamp, but it will be understood that this clamp, of the same design, can be provided. for the smallest hose, as for example small hose used for watering lawns and the like. It is with the view of making the device thus small that we provide the lateral extensions hose clamps.

6 and 10 for the members 3 and 8, respectively; enabling a comparatively narrow strip to be used for the loop member 1 without making the cast metal members 3 and 8 so small and weak as to be impractical. Larger clamps may beused for fire hose and the like, or still larger ones for patching large water mains or steam pipes temporarily, in the manner illustrated in Figs. (3 and 7. The patch may be rubber, leather (for oil or gas pipes) or metallic gasket or packing material (for steam or hot water mains) or any other material required according to the nature of the fluid that passes through the pipes. Our clamp is especially suitable for large heavy patching or coupling, on account of the extremely heavy clamping pressure that may be applied by the wedges drawn together by the bolt, and on account of the fact that, as no parts are distorted in this action and the bolt does not have to hold the loop member ends together by direct action, but holds indirectly through the advantageous intervention of the wedge members 3 and 8, the connection or patch is more dependable, the clamping device is more durable, and the work of tightening the clamp is less than with the commonly used clamps, wherein a bolt acts directly on the loop member ends and bends them out of shape in pulling them around the hose or pipe.

This clamp also is suited for clamping the air or steam hose to the pipes on railway cars, and for clamping the hose on automobiles where it connects with the radiator and with the engine jacket. In both of these cases, very large numbers 01 hose clamps are used; and our invention will afford greater security agaiiist leakage, and greater ease oi removal and replacement of the hose, due to the advantages before pointed out. The stove bolt 12 is more adapted for very small The square-head bolt 12, or its equivalent, a hexagonal head bolt, is bet-- ter for medium sized clamps, as for example the rail *ay or motor car equipment referred to above; or wherever rusting of the bolt threads would make loosening with a screwdriver difiicult. For greater security, a lock nut may be added, or the bolt ends may be burred over the nuts; these being details within the choice of the. users. But in any case,'the bolt will have less to hold than in the ordinary clamps where the bolt acts directly and not through the medium of the wedge.

Modifications other thanthose alluded to herein may occur, and, while we have somewhat specifically described our invention. we

' do not wish to be understood as being limited to such precise description, but what we claim as new and desire to secure by Letters Patent is:

1. In a hose or pipe clamp, a'loop member to extend around the hose or pipe, having engaging means near its endsat one side of the hose or pipe, threaded means, and wedgg ing members wedged between said engaging a. co

prising narrowend means and the hose or pipe by operation of said threaded means. 7

2. In a hose or pipe clamp, a loop member to extend around the hose or pipe, having engaging means near its ends at one side of the hose or pipe, wedging members wedged between said engaging means and the hose or pipe, and means holding said members to- L gethei in then wedgmg relation.

3. In a hose or pipe clamp, a loop member to extend around the hose'or p1pe, hav1ng engaging means near its ends at one side of the hose or pipe, a wedging member straddling the hose or pipe, threaded means, and

a second wedging'member wedged between the first wedging member and said engaging means by operation of said threaded means.

4. In a hose or pipe clamp, a loop member to extend around the hose or pipe, having engaging means near its ends at one side of the hose or pipe, a wedging member straddling the hose or pipe and having a channel, a second wedging member wedged between the first wedging member and said engag ng means and having a channel registering w th the channel of the first member, forming a passage,.and a bolt extending through said passage and holding said members together in wedging relation.

5. In a hose or pipe clamp, a loop member to extend around the hose or pipe,hav1ng end parts composed of extensions from the opposite sides of the hose or pipe and a cross part connecting sald extensions, a wedging member straddling. the hose or pipe and comaround the hose orpipe between said loop member extensions and lateral parts extending along the hose or pipe between the end parts of theloop member, and a second wedg i 1 n A ing member wedged between the filSb men tioned member and the cross parts of the loop member,

6. In a hose to extend around the hose or;p1p e, having end parts each composed of extens ons from the opposite sides of the hose or pipe and a cross part connecting the extensions, wedging members each comprising narrow parts between the loop member extensions and lateral parts extending along the hose or, (pipe between the end 7 her, one of said wedgmg members straddling.

parts of the loop memthe hose or pipe. with its narrow endparts lapping partly around the hose orp'ipe, and

the other wedging member, resting on the aforementioned wedgmg member and hav ing depressions in which the cross parts of the loop member engage. 7. In a hose or pipe clamp,'a loop member,

to extend around the hose or pipe, having parts lapping partly or pipeclamp, aloop member ly around the hose or pipe, and the other wedgmg member, rest ng on the aforementioned wedging member and having depres sions in which the cross parts of the loop memberengagemnd abolt extending through the registering "channels and holding said members together in their wedging relation.

8.. In a hose or pipe clamp, a wedging member comprising a middle partwitha I channel from end to end, narrow end parts adapted to lap partly around a hose or pipe,

and lateral extensions to lie along the hose or pipe, the surfaces of said member at the sides ofthe channel and throughout said lateral extensions being flat and inclined in a single plane, and meanscoacting with said member, including a loop to surround the hose or pipe, to clamp said hose or pipe.

9. Ina'hose or pipe clamp, a wedging member comprising a lower curved portion to straddle ahose or pipe, and an upper inclined portion, another wedgingmember received by said inclined portion, and means coacting. with said members, including a loop to surround thehose or pipe, to clamp said hose or pipe.

10. In a hose or pipeclamp, a wedging member comprising a lower curved portion to straddle alhose or pipe, and an upper in clined portion, another wedging member re ceived on said inclined portion, said upper portion having a channel at an angle to the inclination of said portion, a bolt in said" channel, wedging said members together,

and a loop tightened around a hose or pipe said members when wedged together, I

11. In a hose or pipe clamp, a wedging member comprising a middle part having a channel trom end-to end, in its lower side,

and having depressions in its upper side, and means eoacting with said member, in-

cluding a loop engaging in said depressions and surrounding the hose'or pipe, and a bolt in said channel, to clamp saidhose or pipe.

12. In a hose or pipe clamp, a. wedging member comprising a middle part having a channelfrom end to end, in its lower side, having depressions in its upper side, and

having lateral extensions fromits region between said depressions, and means coaoting w1th said member, including a loop engag ing insaid depressions and surrounding the hose or pipe, and a bolt in said channel, to clamp said hose or pipe. 7

13. In ahose or pipe clamp; We'd'ging means comprising a member to lie against the hose or pipe and a member to lie on the aforementioned member, said members having registering channels from end to end, at an angle to their meeting surfaces, and means coacting with 'said Wedging means, including a loop to surround the hose or pipe and a. bolt in said channel to wedge said members together, to clamp the hose or pipe.

ALPHEUS FAY. JOHN L. ZEHNDER. 

